A wonderfully harmonious recipe from that ever-reliable master of flavour, Neil Perry, combining the sweetness of slow-braised lamb shoulder with aromatic spices, meltingly soft roast eggplant, fresh mint and tangy, sweet-sour, vinegar-soaked raisins. Pile it into bowls midweek with a side of mash, or make it the centrepiece of a weekend dinner party, with cous cous and the full Middle-Eastern leaning spread.